<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta
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name="viewport"
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content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"
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/>
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<meta name="description" content="Ambient Occlusion." />
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<meta
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name="cesium-sandcastle-labels"
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content="Showcases, Post Processing"
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/>
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<title>Cesium Demo</title>
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<script type="text/javascript" src="../Sandcastle-header.js"></script>
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<script
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type="text/javascript"
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src="../../../Build/CesiumUnminified/Cesium.js"
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nomodule
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></script>
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<script type="module" src="../load-cesium-es6.js"></script>
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</head>
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<body
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class="sandcastle-loading"
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data-sandcastle-bucket="bucket-requirejs.html"
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>
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<style>
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@import url(../templates/bucket.css);
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</style>
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<div id="cesiumContainer" class="fullSize"></div>
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<div id="loadingOverlay"><h1>Loading...</h1></div>
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<div id="toolbar">
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<table>
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<tbody>
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<tr>
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<td>Ambient Occlusion</td>
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<td><input type="checkbox" data-bind="checked: show" /></td>
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</tr>
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<tr>
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<td>Ambient Occlusion Only</td>
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<td>
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<input
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type="checkbox"
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data-bind="checked: ambientOcclusionOnly"
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/>
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</td>
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</tr>
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<tr>
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<td>Intensity</td>
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<td>
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<input
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type="range"
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min="1"
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max="10"
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step="1"
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data-bind="value: intensity, valueUpdate: 'input'"
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/>
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</td>
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</tr>
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<tr>
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<td>Length Cap</td>
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<td>
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<input
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type="range"
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min="0"
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max="1"
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step="0.01"
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data-bind="value: lengthCap, valueUpdate: 'input'"
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/>
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</td>
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</tr>
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<tr>
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<td>Step Size</td>
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<td>
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<input
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type="range"
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min="1"
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max="10"
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step="0.01"
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data-bind="value: stepSize, valueUpdate: 'input'"
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/>
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</td>
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</tr>
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<tr>
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<td>Bias</td>
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<td>
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<input
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type="range"
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min="0"
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max="1"
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step="0.01"
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data-bind="value: bias, valueUpdate: 'input'"
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/>
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</td>
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</tr>
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<tr>
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<td>Blur Step Size</td>
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<td>
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<input
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type="range"
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min="0"
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max="4"
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step="0.01"
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data-bind="value: blurStepSize, valueUpdate: 'input'"
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/>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<script id="cesium_sandcastle_script">
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function startup(Cesium) {
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"use strict";
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//Sandcastle_Begin
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var viewer = new Cesium.Viewer("cesiumContainer");
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if (
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!Cesium.PostProcessStageLibrary.isAmbientOcclusionSupported(
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viewer.scene
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)
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) {
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window.alert(
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"This browser does not support the ambient occlusion post process."
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);
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}
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// Power Plant design model provided by Bentley Systems
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var tileset = new Cesium.Cesium3DTileset({
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url: Cesium.IonResource.fromAssetId(8564),
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});
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tileset.readyPromise
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.then(function (tileset) {
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viewer.scene.primitives.add(tileset);
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})
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.otherwise(function (error) {
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console.log(error);
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});
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var viewModel = {
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show: true,
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ambientOcclusionOnly: false,
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intensity: 3.0,
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bias: 0.1,
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lengthCap: 0.03,
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stepSize: 1.0,
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blurStepSize: 0.86,
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};
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Cesium.knockout.track(viewModel);
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var toolbar = document.getElementById("toolbar");
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Cesium.knockout.applyBindings(viewModel, toolbar);
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for (var name in viewModel) {
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if (viewModel.hasOwnProperty(name)) {
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Cesium.knockout
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.getObservable(viewModel, name)
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.subscribe(updatePostProcess);
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}
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}
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function updatePostProcess() {
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var ambientOcclusion =
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viewer.scene.postProcessStages.ambientOcclusion;
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ambientOcclusion.enabled =
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Boolean(viewModel.show) || Boolean(viewModel.ambientOcclusionOnly);
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ambientOcclusion.uniforms.ambientOcclusionOnly = Boolean(
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viewModel.ambientOcclusionOnly
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);
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ambientOcclusion.uniforms.intensity = Number(viewModel.intensity);
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ambientOcclusion.uniforms.bias = Number(viewModel.bias);
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ambientOcclusion.uniforms.lengthCap = Number(viewModel.lengthCap);
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ambientOcclusion.uniforms.stepSize = Number(viewModel.stepSize);
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ambientOcclusion.uniforms.blurStepSize = Number(
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viewModel.blurStepSize
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);
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}
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updatePostProcess();
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var camera = viewer.scene.camera;
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camera.position = new Cesium.Cartesian3(
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1234127.2294710164,
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-5086011.666443127,
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3633337.0413351045
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);
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camera.direction = new Cesium.Cartesian3(
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-0.5310064396211631,
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-0.30299013818088416,
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-0.7913464078682514
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);
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camera.right = new Cesium.Cartesian3(
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-0.8468592075426076,
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0.1574051185945647,
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0.507989282604011
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);
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camera.up = Cesium.Cartesian3.cross(
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camera.right,
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camera.direction,
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new Cesium.Cartesian3()
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);
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//Sandcastle_End
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Sandcastle.finishedLoading();
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}
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if (typeof Cesium !== "undefined") {
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window.startupCalled = true;
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startup(Cesium);
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}
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</script>
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</body>
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</html>
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